The mean time taken by all participants to run a road race was found to be 125 minutes with a standard deviation of 20 minutes. Using Chebyshev's theorem, find the percentage of runners who ran this...

Quesition is attached thanks!

Extracted text: The mean time taken by all participants to run a road race was found to be 125 minutes with a standard deviation of 20 minutes. Using Chebyshev's theorem, find the percentage of runners who ran this road race in 65 to 185 minutes. Round your answer to the nearest integer. i ! %